misc: ele_api: Add Voltage change start and finish APIs

On GDET enabled part, need to call voltage change start and finish
APIs when adjust the voltage more than 100mv. Otherwise GDET will be
triggered and system is reset

Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>

diff --git a/arch/arm/include/asm/mach-imx/ele_api.h b/arch/arm/include/asm/mach-imx/ele_api.h
index 64b243dcaaad2d8db0b3da4ff848d5109b730fe6..4e1afc42bd86bccac4fda0b0958549136a0518fc 100644 (file)
--- a/arch/arm/include/asm/mach-imx/ele_api.h
+++ b/arch/arm/include/asm/mach-imx/ele_api.h
@@ -14,6 +14,8 @@
 #define ELE_PING_REQ (0x01)
 #define ELE_FW_AUTH_REQ (0x02)
 #define ELE_RESTART_RST_TIMER_REQ (0x04)
+#define ELE_VOLT_CHANGE_START_REQ (0x12)
+#define ELE_VOLT_CHANGE_FINISH_REQ (0x13)
 #define ELE_DUMP_DEBUG_BUFFER_REQ (0x21)
 #define ELE_OEM_CNTN_AUTH_REQ (0x87)
 #define ELE_VERIFY_IMAGE_REQ (0x88)
@@ -160,4 +162,6 @@ int ele_return_lifecycle_update(ulong signed_msg_blk, u32 *response);
 int ele_start_rng(void);
 int ele_write_shadow_fuse(u32 fuse_id, u32 fuse_val, u32 *response);
 int ele_read_shadow_fuse(u32 fuse_id, u32 *fuse_val, u32 *response);
+int ele_volt_change_start_req(void);
+int ele_volt_change_finish_req(void);
 #endif

diff --git a/drivers/misc/imx_ele/ele_api.c b/drivers/misc/imx_ele/ele_api.c
index 661f70cf870f30623c04e71ab865b9db3d4636be..e7aee0fcef1fd44f507975f119111fb59085ca5d 100644 (file)
--- a/drivers/misc/imx_ele/ele_api.c
+++ b/drivers/misc/imx_ele/ele_api.c
@@ -794,3 +794,53 @@ int ele_generate_dek_blob(u32 key_id, u32 src_paddr, u32 dst_paddr, u32 max_outp
 
        return ret;
 }
+
+int ele_volt_change_start_req(void)
+{
+       struct udevice *dev = gd->arch.ele_dev;
+       int size = sizeof(struct ele_msg);
+       struct ele_msg msg = {};
+       int ret;
+
+       if (!dev) {
+               printf("ele dev is not initialized\n");
+               return -ENODEV;
+       }
+
+       msg.version = ELE_VERSION;
+       msg.tag = ELE_CMD_TAG;
+       msg.size = 1;
+       msg.command = ELE_VOLT_CHANGE_START_REQ;
+
+       ret = misc_call(dev, false, &msg, size, &msg, size);
+       if (ret)
+               printf("Error: %s: ret %d, response 0x%x\n",
+                      __func__, ret, msg.data[0]);
+
+       return ret;
+}
+
+int ele_volt_change_finish_req(void)
+{
+       struct udevice *dev = gd->arch.ele_dev;
+       int size = sizeof(struct ele_msg);
+       struct ele_msg msg = {};
+       int ret;
+
+       if (!dev) {
+               printf("ele dev is not initialized\n");
+               return -ENODEV;
+       }
+
+       msg.version = ELE_VERSION;
+       msg.tag = ELE_CMD_TAG;
+       msg.size = 1;
+       msg.command = ELE_VOLT_CHANGE_FINISH_REQ;
+
+       ret = misc_call(dev, false, &msg, size, &msg, size);
+       if (ret)
+               printf("Error: %s: ret %d, response 0x%x\n",
+                      __func__, ret, msg.data[0]);
+
+       return ret;
+}